92x102怎么简算(
124x102的简算列递等式怎么写 -
124x102 =124x（100+2）124x100+124x2 =12400+248 =12648
2.8x102 =2.8x（100+2）2.8x100+2.8x2 =280+5.6 =285.6 希望能帮到你！
124x102 =124x（100+2）124x100+124x2 =12400+248 =12648
2.8x102 =2.8x（100+2）2.8x100+2.8x2 =280+5.6 =285.6 希望能帮到你！
45x102 =45×（100+2）45×100+45×2 =4500+90 =4590
41x102 =41x(100+2)=41x100+41x2 =4100+82 =4182 采用吧！
132x102怎么简算,请写出简算算式及答案。 -
132x102=132x(100+2）1320+264=1584
13*102=13*100+13*2=1300+26=1326
0.78x102x1怎么简算 -
0.78x102 =0.78x(100+2)=0.78x100+0.78x2 =78+1.56 =79.56
102*9.9-9.9*2 =9.9*(102-2)=9.9*100 =990
102x0.55简算怎么算 -
102x0.55 =（100+2）x0.55 =100x0.55+2x0.55 =55+1.1 =56.1
如图所示，